More C++ programs

//Program to display Floyd triangle:-
#include<iostream.h>
main()
{
    int line,i,num=1,incr;
    cout<<" How many lines = ";
    cin>>line;
    cout<<"\n \n Floyds Triangle \n \n";
    for(i=1;i<=line;i++)
    {
        for(incr=1;incr<=i;incr++)
        {
            cout<<num;
            cout<<"\t";
            num++;
        }
        cout<<"\n";
    }
}

Output:-

How many lines = 7

Floyds triangle


1
2           3
4           5           6
7           8           9           10
11         12         13         1 4          15
16         17         18         19            20          21
22          23         24         25           26          27          28

---

//Program to check whether number is prime or not:-

#include<iostream.h>
main()
{
    int num,temp=0,i;
    cout<<"\n Enter the number =";
    cin>>num;
    if(num>0)
    {
        for(i=2;i<=num-1;i++)
        {
            if(num%i==0)
            {
                cout<<"\n Number is not a Prime number \n \n";
                temp=1;
                break;
            }
        }
        if(temp==0)
        {
            cout<<"\n Number is Prime \n \n";
        }
    }
    else
        cout<<"Enter only Positive numbers";
}


Output:-

Enter the number = 7
Number is Prime

---

//Program of destructors in c++:-

#include<iostream.h>
class ABC
{
int *width,*height;
public:
    ABC(int,int);
    ~ABC();
        int area()
    {
            return(*width**height);
    }
};
ABC::ABC(int a,int b)
{
width=new int;
height= new int;
*width=a;
*height=b;
}
ABC::~ABC()
{
    delete width;
    delete height;
   
}
main()
{
    ABC obj1(4,9),obj2(7,5);
    cout<<obj1.area();
    cout<<"\n";
    cout<<obj2.area();
}


Output :-
36
35

---

//Program of static member variable and member function:
#include<iostream.h>
class ABC
{
private :static int data;
public: static void getdata()
        {
            ++data;
            cout<<"count is =";
            cout<<data<<"\n";
        }
     void putdata()
        {
            ++data;
            cout<<"now count is ="<<data<<"\n";
        }
 void newfunction()
{
++data;
cout<<"now count is ="<<data;
}
};
int ABC::data=5;
void main()
{
    ABC obj;
    ABC::getdata();
    obj.putdata();
    obj.newfunction();
}

Output:-
count is =6
now count is =7
now count is =8

---

Solve the sums of Quiz

1) Find the odd man out - 49,  81 ,100 ,144

2)Which of the following numbers is different from others?
A) 3156
B) 4164
C) 5255
D) 6366

3)Fill the blank
5,35,7,42,6 ,_____,9,36,4.
A) 45
B) 48
C) 54
D) 56 

4)Find odd man out :DFEG,  JKLM,   GHIK,   RTSU

5) find odd man out 1,3,10,21,64,129,256,778
1) 10
2) 21
3) 129
4) 256

6)The missing number in the series is:
0 , 6 , 24 , 60 , 120 , ? , 336 is
A) 240     B) 220     C) 280         D)210


7)Let a means minus (-) ,b means multiplied by (*), C means divided by (/) and D means plus(+).The value of 90 D 9 a 29 C 10 b 2
a) 8     b)  10     c) 12   d) 14

8)If MOHAN is represented by the code KMFYL, then COUNT will be represented by
A) AMSLR     B) MSLR      C) MASRL       D)SAMLR

9)  32     33      37    46     62    ?
Replace ? by
A)85          B) 87         C) 94          D) 99

10)AZ       DW        GT       JQ     ?
Replace ? by
A) LD            B) MN            C) MO             D) NM

11) In certain code language ,PUNE is written as SXQH.How would you write DELHI in this language?
A )  FGNJL
B )  FGNJK
C )  GHOKM
D )  GHOKL

12)Find odd man out:
A)  6
B ) 18
C )  24
D )  36

13)Find the wrong term in the following series:
68    66     62    59     56    53
A)  59
B)  62
C)  66
D)  68

14)If P is the brotherb of Q;Q is the son of R; Sis R's father .What is P of S?
A)  Son
B)  Brother
C)  Grandson
D)  Grandfather

15) The missing number in the series 40 , 120 , 60 , 180 , 90 , ? , 135
A)  110
B)  270
C)  105
D)  210

16) The length and breadth of  a rectangle are changed by +20% and by -10% respectively.What is the percentage change in the area of rectangle?
A)  10%
B)  12.5%
C)  8%
D)  15%

17) Two pipes A and B can fill a tyank in 15 minutes and 20  minutes respectively .Both the pipes are opened together but after 4 minutes,pipe A is turned off. What is the total time required to fill the tank?
A) 10 min.40 sec
B) 11 min.45 sec
C) 12 min.30 sec
D)  14 min.40sec

18)The odd number from 1 to 45 which are exactly divisible by 3 are arranged in an ascending order .The number at 6^th position is
A)  18
B)  24
C)  33
D)  36

19)If the radius of a circle is increased by 50%  ,the perimeter of the circle will increase by

A) 30
B)  85/2
C)  170/3
D)  110

20) In code language, the word BAD is written as 658 .In the same language ,what could be the code for FIG?

A)  9         12           10

B) 10        13           11

C)  8         11           13

D)  10       12           13

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